CurrentBuildOperationRef.instance().set(new DefaultBuildOperationRef(new OperationIdentifier(123), null))
    }

    def cleanup() {
        CurrentBuildOperationRef.instance().clear()
    }

    def cleanupSpec() {
        services.close()
    }

    File gradleUserHome() {
        return tmpDir.file("gradleUserHome")
    }

    Class<?> compileWithoutClasspath(String className, String classText) {